trill timer hello
Use trill timer hello to configure the Hello interval.
Use undo trill timer hello to restore the default.
Syntax
trill timer hello interval
undo trill timer hello
Default
The Hello interval is 10 seconds.
Views
Layer 2 Ethernet interface view
Layer 2 aggregate interface view
Predefined user roles
network-admin
mdc-admin
Parameters
interval: Specifies an interval in the range of 1 to 255 seconds.
Usage guidelines
The RB advertises Hello frames at the Hello interval to maintain a TRILL adjacency. The shorter the Hello interval, the faster the network convergence. However, a shorter Hello interval consumes more system resources.
This command sets the Hello interval for an RB. The Hello interval of a DRB is 1/3 of the Hello interval of an RB. This allows for DRB failures to be quickly detected.
The adjacency holding time is obtained by multiplying the Hello interval by the Hello multiplier. The RB advertises the adjacency holding time to neighbors through Hello frames. If a neighbor does not receive any Hello frames from the RB within the adjacency holding time, it removes the TRILL adjacency with the RB.
The adjacency holding time cannot exceed 65535 seconds.
Configuration in Layer 2 Ethernet interface view takes effect only on the current port. Configuration in Layer 2 aggregate interface view takes effect on the current interface and its member ports. Configuration on the member port of an aggregate interface takes effect after the member port leaves the aggregation group.
Examples
# Set the Hello interval to 20 seconds on .
<Sysname> system-view [Sysname] interface [Sysname-] trill timer hello 20
Related commands
trill timer holding-multiplier